A:
Positive:
1 x 1661887577 x 2374125147 x 3535931329 x 505133463 x 3589391091 x 1523273241 x 512777637 x 21761
Negative:
-1 x -166188757-7 x -23741251-47 x -3535931-329 x -505133-463 x -358939-1091 x -152327-3241 x -51277-7637 x -21761
Unfortunately, there's not simple formula to identifying all of the factors of a number and it can be a tedious process when trying to identify the divisors of larger numbers. To find the factor combinations of the number 166,188,757, it is easier to work with a table - it's called factoring from the outside in.
We start by creating a table and writing 1 on the left side and then the number we're trying to find the factors for on the right side in a table. Then, below that, write the numbers as a negative as well.
| 1 | 166,188,757 | |
| -1 | -166,188,757 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 166,188,757.
Example:
1 x 166,188,757 = 166,188,757
and
-1 x -166,188,757 = 166,188,757
Notice both answers equal 166,188,757
With that explanation out of the way, let's continue. Next, we take the number 166,188,757 and divide it by 2:
166,188,757 ÷ 2 = 83,094,378.5
If the quotient is a whole number, then 2 and 83,094,378.5 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 166,188,757 | |
| -1 | -166,188,757 |
Now, we try dividing 166,188,757 by 3:
166,188,757 ÷ 3 = 55,396,252.3333
If the quotient is a whole number, then 3 and 55,396,252.3333 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 166,188,757 | |
| -1 | -166,188,757 |
Let's try dividing by 4:
166,188,757 ÷ 4 = 41,547,189.25
If the quotient is a whole number, then 4 and 41,547,189.25 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 166,188,757 | |
| -1 | 166,188,757 |
If you did it right, you will end up with this table:
| 1 | 7 | 47 | 329 | 463 | 1,091 | 3,241 | 7,637 | 21,761 | 51,277 | 152,327 | 358,939 | 505,133 | 3,535,931 | 23,741,251 | 166,188,757 |
| -1 | -7 | -47 | -329 | -463 | -1,091 | -3,241 | -7,637 | -21,761 | -51,277 | -152,327 | -358,939 | -505,133 | -3,535,931 | -23,741,251 | -166,188,757 |
Here are some more numbers to try:
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